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Yep, they do. They're typically 4/8 and can be found pretty easy on say ebay.
There just aren't that many stainless steel razors. I am trying to remember which brand was the sheffield one I had,...

No from the good ones, yes from the bad ones.
Good = Dovo, Boker, Henckels (friodur), Hess, Heljestrand, Filarmonica, C-Mon, Dubl Duck
Bad = everything else

There are few others of the good...